Pentax-AWS~R and tube selection

摘要

To the Editor: The Pentax-AWS~R (Airway Scope~R, AWS; Pentax Corporation, Tokyo, Japan) is a novel video laryngoscope designed to facilitate tracheal intubation under indirect vision. It provides a view of the glottis through a charge-coupled device camera on the built-in colour liquid crystal device monitor without requiring a direct line of sight from above the maxillary teeth past the base of the tongue, which is necessary for tracheal intubation with conventional direct laryngoscopy.